On 2010-09-13 13:03, Colin Guthrie wrote:
'Twas brillig, and David Henningsson at 13/09/10 11:14 did gyre and gimble:
On 2010-09-04 14:10, Colin Guthrie wrote:
I'd be interested as to whether anyone else can repeat this experiment
and get similar results. Do you guys get a broken chordtest too (it's on
the RedHat bug I mentioned at the beginning of this thread)?
I have now tried to repeat the experiment. The chordtest.sh seems to be
buggy in itself (the cleanup does not remove the gst-launch, which in
turn had to be renamed to gst-launch-0.10 here).
Yeah I have gst-launch-0.10 here too... not quite sure why, I'd have
thought we could ditch the old 0.8 support by now but hey ho. (I don't
follow gst dev super closely)
I thought that the script trapped ctrl+c and killed any processes
started. It seems to be clean for me.
Perhaps the problem is that /bin/sh is not actually bash on your system?
It is "dash" on Ubuntu systems.
Perhaps just changing the first line to:
#!/bin/bash would cause it to tidy things up properly?
Yes, that worked, thanks.
Anyway, the results
were not encouraging - with tsched=0, pavucontrol, and -vvvv to syslog
on, three tones were heard, then things went quiet - however, pulseaudio
started to eat more and more memory. Quickly my machine started swapping
and became unresponsive, so I killed PA.
Besides that, when I looked at pavucontrol, only the meters of the first
three were moving, the other ones were silent. My log got filled up with
"memblockq: pool full" as well. I'm getting the feeling that this
problem is something different, unrelated to DMA controller hardware.
Interesting, can't say I noticed this, but I probably wasn't looking
closely enough.
My suggestion is that you should commit your proposed patch as it
improves the situation compared to the current situation. If there are
additional problems, let's nail them down separately.
OK, sounds reasonable. Do you think the patch I posted is OK with the
1330 time?
I think it is good enough for now. If it turns out to be too little, we
can adjust it later.
I guess it's not super important as if it solves your original problem
that kicked off this whole thread, then that's the main thing!!
That PA can handle a stress test is important, but it's a different issue.
--
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic
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